# M2Kit vs Welding Gas Cylinder Tracker

The clearest difference is update cadence: M2Kit at every 3 days against Welding Gas Cylinder Tracker's every 10 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. M2Kit sells 1 in-app purchase, starting at $1.99 per month and Welding Gas Cylinder Tracker sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

M2Kit ships an update every 3 days, Welding Gas Cylinder Tracker every 10 days. The most recent releases landed on October 31, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | M2Kit | Welding Gas Cylinder Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 10 days |
| Size | 58 MB | 4 MB |
| Requires iOS | 18.6 | **18.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takumu Hirohashi](https://appshunter.io/developer/1884874476) | [Lateef Razaq-Oyetola](https://appshunter.io/developer/6799562284) |

## What reviewers say

### M2Kit

[App page](https://appshunter.io/ios/app/m2kit/id6760541998)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ProfitLens Premium | $1.99 | per month |


### Welding Gas Cylinder Tracker

[App page](https://appshunter.io/ios/app/welding-gas-cylinder-tracker/id6808050644)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $19.99 | per year |


## Frequently asked questions

### Is M2Kit free?

M2Kit is free to download, with in-app purchases available.

### Is Welding Gas Cylinder Tracker free?

Welding Gas Cylinder Tracker is free to download, with in-app purchases available.

### Do M2Kit or Welding Gas Cylinder Tracker have ads?

Neither M2Kit nor Welding Gas Cylinder Tracker shows ads.

### Which is updated more often, M2Kit or Welding Gas Cylinder Tracker?

M2Kit ships an update every 3 days, and Welding Gas Cylinder Tracker every 10 days. Most recently, M2Kit was updated on October 31, 2026 and Welding Gas Cylinder Tracker on October 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*